From a731ab3a2aad56e6ceb8b4e2444a61353246295c Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Thu, 8 Aug 2019 15:56:22 -0300
Subject: Add a new JIT compiler for CPU code (#693)

* Start of the ARMeilleure project

* Refactoring around the old IRAdapter, now renamed to PreAllocator

* Optimize the LowestBitSet method

* Add CLZ support and fix CLS implementation

* Add missing Equals and GetHashCode overrides on some structs, misc small tweaks

* Implement the ByteSwap IR instruction, and some refactoring on the assembler

* Implement the DivideUI IR instruction and fix 64-bits IDIV

* Correct constant operand type on CSINC

* Move division instructions implementation to InstEmitDiv

* Fix destination type for the ConditionalSelect IR instruction

* Implement UMULH and SMULH, with new IR instructions

* Fix some issues with shift instructions

* Fix constant types for BFM instructions

* Fix up new tests using the new V128 struct

* Update tests

* Move DIV tests to a separate file

* Add support for calls, and some instructions that depends on them

* Start adding support for SIMD & FP types, along with some of the related ARM instructions

* Fix some typos and the divide instruction with FP operands

* Fix wrong method call on Clz_V

* Implement ARM FP & SIMD move instructions, Saddlv_V, and misc. fixes

* Implement SIMD logical instructions and more misc. fixes

* Fix PSRAD x86 instruction encoding, TRN, UABD and UABDL implementations

* Implement float conversion instruction, merge in LDj3SNuD fixes, and some other misc. fixes

* Implement SIMD shift instruction and fix Dup_V

* Add SCVTF and UCVTF (vector, fixed-point) variants to the opcode table

* Fix check with tolerance on tester

* Implement FP & SIMD comparison instructions, and some fixes

* Update FCVT (Scalar) encoding on the table to support the Half-float variants

* Support passing V128 structs, some cleanup on the register allocator, merge LDj3SNuD fixes

* Use old memory access methods, made a start on SIMD memory insts support, some fixes

* Fix float constant passed to functions, save and restore non-volatile XMM registers, other fixes

* Fix arguments count with struct return values, other fixes

* More instructions

* Misc. fixes and integrate LDj3SNuD fixes

* Update tests

* Add a faster linear scan allocator, unwinding support on windows, and other changes

* Update Ryujinx.HLE

* Update Ryujinx.Graphics

* Fix V128 return pointer passing, RCX is clobbered

* Update Ryujinx.Tests

* Update ITimeZoneService

* Stop using GetFunctionPointer as that can't be called from native code, misc. fixes and tweaks

* Use generic GetFunctionPointerForDelegate method and other tweaks

* Some refactoring on the code generator, assert on invalid operations and use a separate enum for intrinsics

* Remove some unused code on the assembler

* Fix REX.W prefix regression on float conversion instructions, add some sort of profiler

* Add hardware capability detection

* Fix regression on Sha1h and revert Fcm** changes

* Add SSE2-only paths on vector extract and insert, some refactoring on the pre-allocator

* Fix silly mistake introduced on last commit on CpuId

* Generate inline stack probes when the stack allocation is too large

* Initial support for the System-V ABI

* Support multiple destination operands

* Fix SSE2 VectorInsert8 path, and other fixes

* Change placement of XMM callee save and restore code to match other compilers

* Rename Dest to Destination and Inst to Instruction

* Fix a regression related to calls and the V128 type

* Add an extra space on comments to match code style

* Some refactoring

* Fix vector insert FP32 SSE2 path

* Port over the ARM32 instructions

* Avoid memory protection races on JIT Cache

* Another fix on VectorInsert FP32 (thanks to LDj3SNuD

* Float operands don't need to use the same register when VEX is supported

* Add a new register allocator, higher quality code for hot code (tier up), and other tweaks

* Some nits, small improvements on the pre allocator

* CpuThreadState is gone

* Allow changing CPU emulators with a config entry

* Add runtime identifiers on the ARMeilleure project

* Allow switching between CPUs through a config entry (pt. 2)

* Change win10-x64 to win-x64 on projects

* Update the Ryujinx project to use ARMeilleure

* Ensure that the selected register is valid on the hybrid allocator

* Allow exiting on returns to 0 (should fix test regression)

* Remove register assignments for most used variables on the hybrid allocator

* Do not use fixed registers as spill temp

* Add missing namespace and remove unneeded using

* Address PR feedback

* Fix types, etc

* Enable AssumeStrictAbiCompliance by default

* Ensure that Spill and Fill don't load or store any more than necessary
---
 Ryujinx.HLE/HOS/Kernel/Threading/KThread.cs | 64 +++++++++++++++++++++--------
 1 file changed, 47 insertions(+), 17 deletions(-)

(limited to 'Ryujinx.HLE/HOS/Kernel/Threading/KThread.cs')

diff --git a/Ryujinx.HLE/HOS/Kernel/Threading/KThread.cs b/Ryujinx.HLE/HOS/Kernel/Threading/KThread.cs
index 50c71ea9..54d5d06c 100644
--- a/Ryujinx.HLE/HOS/Kernel/Threading/KThread.cs
+++ b/Ryujinx.HLE/HOS/Kernel/Threading/KThread.cs
@@ -1,5 +1,5 @@
-using ChocolArm64;
-using ChocolArm64.Memory;
+using ARMeilleure.Memory;
+using ARMeilleure.State;
 using Ryujinx.Common.Logging;
 using Ryujinx.HLE.HOS.Kernel.Common;
 using Ryujinx.HLE.HOS.Kernel.Process;
@@ -7,12 +7,17 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using System.Threading;
 
 namespace Ryujinx.HLE.HOS.Kernel.Threading
 {
     class KThread : KSynchronizationObject, IKFutureSchedulerObject
     {
-        public CpuThread Context { get; private set; }
+        private int _hostThreadRunning;
+
+        public Thread HostThread { get; private set; }
+
+        public IExecutionContext Context { get; private set; }
 
         public long AffinityMask { get; set; }
 
@@ -152,30 +157,35 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
                 is64Bits = true;
             }
 
-            Context = new CpuThread(owner.Translator, owner.CpuMemory, (long)entrypoint);
+            HostThread = new Thread(() => ThreadStart(entrypoint));
 
-            bool isAarch32 = (Owner.MmuFlags & 1) == 0;
+            if (System.UseLegacyJit)
+            {
+                Context = new ChocolArm64.State.CpuThreadState();
+            }
+            else
+            {
+                Context = new ARMeilleure.State.ExecutionContext();
+            }
 
-            Context.ThreadState.Aarch32 = isAarch32;
+            bool isAarch32 = (Owner.MmuFlags & 1) == 0;
 
-            Context.ThreadState.X0  = argsPtr;
+            Context.SetX(0, argsPtr);
 
             if (isAarch32)
             {
-                Context.ThreadState.X13 = (uint)stackTop;
+                Context.SetX(13, (uint)stackTop);
             }
             else
             {
-                Context.ThreadState.X31 = stackTop;
+                Context.SetX(31, stackTop);
             }
 
-            Context.ThreadState.CntfrqEl0 = 19200000;
-            Context.ThreadState.Tpidr     = (long)_tlsAddress;
+            Context.CntfrqEl0 = 19200000;
+            Context.Tpidr     = (long)_tlsAddress;
 
             owner.SubscribeThreadEventHandlers(Context);
 
-            Context.WorkFinished += ThreadFinishedHandler;
-
             ThreadUid = System.GetThreadUid();
 
             _hasBeenInitialized = true;
@@ -1002,8 +1012,8 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
 
         public void SetEntryArguments(long argsPtr, int threadHandle)
         {
-            Context.ThreadState.X0 = (ulong)argsPtr;
-            Context.ThreadState.X1 = (ulong)threadHandle;
+            Context.SetX(0, (ulong)argsPtr);
+            Context.SetX(1, (ulong)threadHandle);
         }
 
         public void TimeUp()
@@ -1013,7 +1023,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
 
         public string GetGuestStackTrace()
         {
-            return Owner.Debugger.GetGuestStackTrace(Context.ThreadState);
+            return Owner.Debugger.GetGuestStackTrace(Context);
         }
 
         public void PrintGuestStackTrace()
@@ -1026,12 +1036,32 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
             Logger.PrintInfo(LogClass.Cpu, trace.ToString());
         }
 
-        private void ThreadFinishedHandler(object sender, EventArgs e)
+        public void Execute()
+        {
+            if (Interlocked.CompareExchange(ref _hostThreadRunning, 1, 0) == 0)
+            {
+                HostThread.Start();
+            }
+        }
+
+        private void ThreadStart(ulong entrypoint)
+        {
+            Owner.Translator.Execute(Context, entrypoint);
+
+            ThreadExit();
+        }
+
+        private void ThreadExit()
         {
             System.Scheduler.ExitThread(this);
             System.Scheduler.RemoveThread(this);
         }
 
+        public bool IsCurrentHostThread()
+        {
+            return Thread.CurrentThread == HostThread;
+        }
+
         public override bool IsSignaled()
         {
             return _hasExited;
-- 
cgit v1.2.3-70-g09d2